The preparation of fiber end faces of fiber fusion splicers includes stripping, cleaning and cutting. Qualified fiber end faces are a necessary condition for fusion splicing, and the quality of the end faces affects the quality of fusion splicing. Many people have questions about how to reduce the loss of fiber fusion splices. After the fiber is spliced, the light transmitted to the joint will produce a certain amount of loss, which is called fusion loss or splicing loss. Let's take a look at how to reduce the loss of fiber fusion splices.
The following are the methods to reduce the joint loss of the optical fiber fusion splicer:
1. Try to use the same batch of high-quality brand bare fibers on a line
2. Install the optical cable as required
3. Select experienced and well-trained optical fiber splicing personnel for splicing
4. Splicing optical cables should be carried out in a clean environment
5. Use a high-precision optical fiber end face cutter to prepare the optical fiber end face
6. Correct use of the fusion splicer
Threading skills in wiring
In wiring projects, the level of construction directly affects the performance of the system. Severe cases require rework, such as incorrect grooving, reversed color labels on the patch panel, and wrong numbers. Among them, threading technology (such as cables passing through steel pipes and transition boxes) is a more commonly used technology. The more mature experience in this area is summarized for your reference.
Threading technology is a more common technology in wiring. In order to ensure that the cables are not scratched and cause "short circuits", plastic guards must be placed on all steel pipe openings. A feasible method is that the wire threading personnel should carry "mouth guards" at all times during construction, and can place them at any time when needed, so as to avoid being "lazy" because there is no "mouth guard" on hand. When the vertical cable passes through the transition box and enters the vertical steel pipe to the next layer, it should be tied and hung in the transition box to avoid the weight of the cable being fully pressed on the inner cable of the bend, because this will affect the transmission characteristics of the cable. The cables in the vertical cable duct should be tied and hung once every meter. The cables laid in the cable duct should be straight, untangled, and of the same length.
Regarding the problem of "excess wire", the length of the "excess wire" of the cable at the distribution box should be consistent and not too long. It is best to group the excess wires according to the grouping table, straighten and tie them from the outlet of the cable duct, and the spacing between the tying points should not exceed 50cm. It should be noted that iron wire or hard power cord cannot be used for tying.
Regarding the numbering problem, the cables are numbered according to the computer floor plan. Each number corresponds to a 4-pair core wire. The corresponding room and socket positions cannot be wrong. In implementation, this is the most error-prone place. Experience shows that the number positions at both ends are 25cm away from the end. Light-colored plastic tape is pasted, and the number is written on it with an oil pen or a paper number label is pasted and then wrapped with transparent tape.
The loss of the optical fiber fusion splicer is mainly composed of the transmission loss of the optical fiber itself and the fusion loss at the optical fiber fusion joint. The above method can effectively reduce the loss of the joint during optical fiber fusion.